SAP ABAP / Java / C#?

Those platforms have Base64 APIs too — use this tool to validate the string your code produces.

Convert PDF to Base64 Online Free — string for APIs

Convert PDF to Base64

Convert PDF to Base64 online free — drop the PDF, copy the encoded string. Ideal for API payload testing.

Long-tail convert-PDF queries often come from developers wiring JSON document fields. This landing skips Text mode and goes straight to file encode.

Browser: FileReader or arrayBuffer + btoa chunks. Python: `base64.b64encode(Path('a.pdf').read_bytes()).decode()`.

Buffer.from("hello").toString("base64");
Buffer.from(b64, "base64").toString("utf8");

btoa(unescape(encodeURIComponent(text)));
decodeURIComponent(escape(atob(b64)));

import base64
base64.b64encode(b"hello").decode()  # aGVsbG8=
base64.b64decode("aGVsbG8=").decode()

const uri = `data:image/png;base64,${b64}`;
// <img src={uri} /> or CSS url('${uri}')

This is one direction of Base64 Studio. The editor is the same; the title and default direction match this search.